---
product_id: 624822980
title: "TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators 100 Pack - Commercial Truck Wheel Nut Pre-Trip Safety Inspection Tool"
brand: "tyk industries"
price: "R2774"
currency: ZAR
in_stock: true
reviews_count: 1
category: "Tyk Industries"
url: https://www.desertcart.co.za/products/624822980-tyk-industries-21mm-loose-wheel-lug-nut-safety-check-indicators
store_origin: ZA
region: South Africa
---

# Heat-sensitive up to 240°F for brake safety Fits 21mm lug nuts for trucks & trailers 100-pack high-visibility yellow indicators TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators 100 Pack - Commercial Truck Wheel Nut Pre-Trip Safety Inspection Tool

**Brand:** tyk industries
**Price:** R2774
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stay ahead of the curve—secure your wheels, secure your journey!

## Quick Answers

- **What is this?** TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators 100 Pack - Commercial Truck Wheel Nut Pre-Trip Safety Inspection Tool by tyk industries
- **How much does it cost?** R2774 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/624822980-tyk-industries-21mm-loose-wheel-lug-nut-safety-check-indicators)

## Best For

- tyk industries enthusiasts

## Why This Product

- Trusted tyk industries brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Thermal Safety Alert:** Melts at 240°F to warn of overheating brakes or hubs before disaster strikes.
- • **Fleet-Ready Bulk Pack:** 100 indicators per pack—ideal for commercial trucks, trailers, and maintenance teams.
- • **Effortless Installation:** Push-on design lets you secure all lug nuts in seconds with consistent patterning.
- • **Instant Loose Nut Detection:** Spot misaligned indicators at a glance to prevent wheel failures.
- • **Boost Your Pre-Trip Confidence:** Stay ahead of costly breakdowns and ensure road safety with every inspection.

## Overview

TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators come in a 100-pack of bright yellow, push-on markers designed for commercial truck and trailer lug nuts. They provide quick visual detection of loose nuts and feature a heat-sensitive material that melts at 240°F to signal overheating brakes or hubs, enhancing pre-trip safety inspections and reducing roadside risks.

## Description

Buy TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators 100 Pack - Commercial Truck Wheel Nut Pre-Trip Safety Inspection Tool: Lug Nuts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Worked as described and durable. - Worked as described.

## Features

- 100 Pack of 21mm High Visability Yellow Safety Check loose wheel nut indicators
- Easy Installation: Simply push the Safety Check indicators on to your lug nuts in a consistent pattern and you are done.
- Loose Wheel Nut Indication: To determine if you have a loose wheel nut, simply look down at the indicators to see if any of them are pointing in a different direction from the rest.
- Overheating Wheel Indication: The melting point on the Safety Check loose wheel nut indicators is 240 degrees Fahrenheit which will provide an additional safety check for your wheel and brake temperature. If the Safety Check indicators warp or melt, your brakes or hub assembly may be overheating and need service.
- Size: These Safety Check loose wheel nut indicators are designed for 21mm wheel lug nuts on trucks, trailers, commercial vehicles and more!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CZ3FYTNP |
| Best Sellers Rank | #281,434 in Automotive ( See Top 100 in Automotive ) #912 in Wheel & Tire Lug Nuts #2,001 in Hardware Nuts #2,331 in Tire Repair Tools |
| Brand | TYK Industries |
| Customer Reviews | 4.8 4.8 out of 5 stars (6) |
| Date First Available | March 26, 2024 |
| Item Weight | 5.9 ounces |
| Manufacturer | TYK Industries |
| Manufacturer Part Number | TYKSC21YEL-100 |
| Product Dimensions | 0.83 x 0.83 x 0.83 inches |

## Images

![TYK Industries 21mm Loose Wheel Lug Nut Safety Check Indicators 100 Pack - Commercial Truck Wheel Nut Pre-Trip Safety Inspection Tool - Image 1](https://m.media-amazon.com/images/I/61DApnLR-IL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked as described and durable.
*by M***E on May 19, 2025*

Worked as described.

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-04-23*